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Selected:PERT EstimationARID (Active Reviews for Intermediate Designs)Dot EstimationATAM (Architecture Tradeoff Analysis Method)
| Criterion |  Decision Making PERT Estimation |  Architecture ARID (Active Reviews for Intermediate Designs) |  Facilitation Dot Estimation |  Architecture ATAM (Architecture Tradeoff Analysis Method) |
|---|---|---|---|---|
Purposedifferent | On complex initiatives, a plain average tends to understate just how uncertain the outcome really is. It separates options, evaluation criteria, and open risks. The result is captured as a PERT Estimate, Expected Value, and Risk Notes. | ARID examines how well developers can work with a technical design. It focuses on a part of the system that can still be revised, between the architecture overview and the detailed specification. | When size or effort can only be estimated roughly, Dot Estimation condenses the group's experience into a quick range. It turns individual contributions into a visible selection. The result is captured as an Effort Heatmap, Risk Signals, and Discussion Targets. | ATAM helps teams weigh architecture decisions when quality goals compete. The team considers business goals, stakeholder expectations, and technical decisions together. The evaluation shows which risks need further investigation. |
Complexitydifferent | Medium | Medium | Low | High |
Timedifferent | 15-45 min | 2–4 h review as a planning range; preparation and evaluation additional | 5-20 min | Several meetings plus preparation and analysis; total effort depends on scope |
Participantsdifferent | 1-8 | Designers, developers as users, and facilitation | 3-20 | Evaluation team, architects, and relevant stakeholders |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop + async |
Outputdifferent | PERT Estimate, Expected Value, Risk Notes | Prioritized development tasks, Jointly produced code or pseudocode, Observed difficulties and open design questions, Proposed design revisions | Effort Heatmap, Risk Signals, Discussion Targets | Prioritized quality scenarios in a utility tree, Architecture risks with reasoning and assumptions, Sensitivity and trade-off points, Findings report with open investigations |
Tagsno overlap | EstimationUncertaintyRisk | ArchitectureEngineeringFeedbackValidationTasks | EstimationEffortRisk | ArchitectureQualityRiskTradeoffsStakeholders |